Reproduction in plants Worksheet-2

Reproduction in plants Worksheet-2

Multiple-Choice Questions:

16. The parts labeled X and Y in the diagram are:

(a) X = ovule, Y = style.                    (b) X = style, Y = pollen.

(c) X = pollen, Y = style.                   (d) X = style, Y = ovule.

17. The diagram shows a typical wind pollinated flower. What are the labelled parts?

(a) A = Carpel, B = Ovary.                (b) A = Stamen, B = Petal.

(c) A = Stamen, B = Carpel.             (d) A = Sepal, B = Carpel.

18. Which of the following is the correct order in which a plant may reproduce?

(a) Pollination, fertilization, seed formation, dispersal, germination.

(b) Germination, pollination, seed dispersal, fertilization, seed formation.

(c) Pollination, seed formation, fertilization, germination, seed dispersal.

(d) Fertilization, pollination, germination, seed dispersal, seed formation.

19. Name the parts labelled X and Y in the seed shown.

(a) X = plumule, Y = radicle.            (b) X = plumule, Y = testa.

(c) X = radicle, Y = testa.                  (d) X = food store, Y = radicle.

20. In the carpel, the male gamete makes its way to the female gamete by passing down through the:

(a) Filament        (b) Nectar            (c) pollen tube    (d) Sepal

21. Sexual reproduction involves the fertilization of:

(a) two eggs         (b) two ova         (c) two sperm     (d) two gametes

22. Which one of the following is not a part of a seed? 

(a) Stigma            (b) Plumule         (c) Testa               (d) cotyledon

Fill in the Blanks:

1. The male and female reproductive cells of plants are called _______.
2. A small bulb-like cellular outgrowth formed from the yeast cell is called a _________.
3. In spirogyra, the adult organism breaks up into two or more pieces called __________.
4. A plant which contains both male and female reproductive cells in one flower is called a ______ flower.
5. The ovary contains the female gametes, called________.

True/False:

1. In self-pollination, pollen grains are transferred from anthers of one flower to the stigma of another flower.
2. Flowerless plants such as algae reproduce by fragmentation.
3. In sexual reproduction, the male and female organs produce male and female gametes, whose fusion results in a zygote.
4. After fertilization of the egg, the ovary becomes a seed and ovules become fruits.
5. Seed dispersal is necessary to separate the seed from the parent plant so that the seed can grow into a new plant.

Answer key:

16. (A)
17. (C)
18. (A)
19. (C)
20. (C)
21. (D)
22. (A)

Fill in the blanks:

1. Gamete/Gametes
2. Bud
3. Fragments
4. Complete/bisexual
5. Ovules

True/False:

1. F
2. T
3. T
4. F
5. T